3fmutual.com
3F Mutual supports crypto risk protection, bug bounties, coverage, or security review workflows.
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alphaping.ch
AlphaPing operates mandate-driven, non-custodial on-chain credit vaults with defined risk boundaries and verifiable on-chain accounting. Vaults include USDC- and LINK-denominated mandates that apply over-collateralized credit, programmatic liquidation, isolated risk compartments and deterministic exit rules. The project states its vaults target institutional use cases and are not intended for discretionary trading, yield aggregation or retail-oriented speculation.
alsoasked.com
AlsoAsked is a search intent and keyword research tool that provides live, geo-specific "People Also Ask" data from Google. It helps users map search intent for traditional and AI search, improve content alignment with user queries, supports international SEO with city and language targeting, and offers API access for automated intent shift monitoring. It operates on tiered subscription plans with varying monthly credit allowances.
backlinkscan.com
BacklinkScan is an AI-powered backlink checker. It provides daily monitoring of new and lost backlinks, automated disavow file preparation, and Search Console integration for organic keyword and ranked page data. It also offers historical backlinks, referring domain analysis and brand visibility tracking across AI platforms.
blocksec.com
BlockSec Phalcon Security is a platform for protocols, liquidity providers and traders, L1/L2 chains and exchanges to detect attacks, receive alerts and take automatic actions. It scans transactions at the mempool stage and can place a transaction ahead of an attack to block it. The site describes configuration by importing addresses or using templates.
certkit.io
CertKit Certificate Search is a tool that searches TLS certificate transparency logs to locate publicly issued certificates. It can identify new subdomains, certificate renewals, and suspicious activity, supporting security monitoring, domain research, and uncovering hidden infrastructure.
github.com
Changd is an open source, self-hosted web monitoring application and a free alternative to SaaS-based solutions. It monitors visual site changes using differential screenshots, XPath expressions or data returned from API endpoints. The frontend uses TypeScript, React and AntD, the backend runs on Node.js, and data is persisted in a Postgres database.
check-host.net
Check-Host.net is an online tool for checking the availability of websites, servers, hosts and IP addresses. It offers domain and IP location data from geolocation databases and whois, ping to measure latency and packet loss from servers worldwide, HTTP response checks, DNS record retrieval, TCP and UDP port checks, a subnet calculator, a live server terminal for diagnostics, and API documentation for building monitoring solutions.
coinledger.io
CoinLedger helps track crypto portfolios, balances, transactions, taxes, or DeFi positions.
coinstats.app
CoinStats helps track crypto portfolios, balances, transactions, taxes, or DeFi positions.
cryptorank.io
CryptoRank provides a portfolio tracker with a built-in NFT and DeFi wallet tracker. Users can create manual portfolios, add transactions, and view balances, profit, and change over customizable periods. It offers real-time price data for more than 19,000 cryptocurrencies and a mobile app. Tracking requires sharing a public address.
cyfrin.io
Cyfrin is a blockchain security firm helping protocols and institutions reduce risk through smart contract audits, formal verification, penetration testing, incident response, and security and risk advisory. It also provides security research and enterprise education and certifications.
debank.com
DeBank helps track crypto portfolios, balances, transactions, taxes, or DeFi positions.
easedefi.org
Ease builds coverage products for decentralized finance, targeting smart contract exploits, protocol failures and economic attacks. Its stNXM product lets users underwrite coverage for DeFi protocols and earn yield from premiums, with capital at risk for valid claims. Uninsurance covers deposited assets through mutual protection. Cross-Asset Yield Vaults are described as in development.
ensuro.co
Ensuro supports crypto risk protection, bug bounties, coverage, or security review workflows.
everrise.com
EverRise is a blockchain technology company offering bridging and security solutions across blockchains through an ecosystem of decentralized applications. Its listed products include EverRevoke, EverSwap, EverBridge, EverOwn, EverMigrate, NFT Staking Lab, EverLaunch and EverLock. In July 2023, the company announced CrossX, described as a tool for moving stablecoins cross-chain and earning yield by providing liquidity.
getfailsafe.com
FailSafe builds autonomous penetration testing and continuous offensive security systems for applications, APIs, cloud infrastructure, and AI. Its SWARM platform deploys threat-model-driven AI agents that discover, chain, and exploit vulnerabilities, with findings mapped to MITRE ATT&CK, OWASP, and NIST CSF.
github.com
Featureform is an open-source virtual feature store hosted on GitHub under the featureform organization. It is designed to turn users' existing data infrastructure into a feature store, with supporting resources including a public website, documentation, community forum, and explanatory material on its core abstraction and unique value proposition.
feedflow.dev
Feed Flow is a minimal RSS reader that presents feeds in a clean chronological timeline with no algorithmic sorting. It is available for Android, iOS, macOS, Windows and Linux, requires no account, and supports RSS, Atom and OPML formats. It offers sync options including iCloud, Dropbox, Google Drive and self-hosted services such as FreshRSS, Miniflux, Feedbin and BazQux, and supports offline reading and reader mode.
nodetics.com
Feedbro is a free RSS feed reader browser extension for Chrome, Vivaldi, Edge, Brave, and Firefox. It reads RSS, Atom, and RDF feeds and integrates with social media and content sites. It includes a rule engine for automated filtering, tree-based navigation with folders, feed autodiscovery, tagging, and partial-to-full article conversion.
feedbutler.app
FeedButler sends the newest posts from subscribed RSS feeds to users as a daily email digest, grouping new posts per feed. It is presented as an alternative to opening a separate feed reader.
feedle.world
A search engine for blogs and podcasts that returns search results as RSS feeds. It searches across blog posts and podcast episodes, and users can subscribe to a search feed to receive updates when new results match their criteria.
fishsounds.net
FishSounds is a website offering a global inventory of fish sound production research. Information can be searched by fish taxa, by recordings, or by references, and the site includes a video tour, statistics, citations guidance, and additional resources on underwater sound and passive acoustic monitoring.
github.com
Flood is a monitoring service for various torrent clients. It is a Node.js service that communicates with a torrent client and serves a web UI for administration, with a Node.js backend and React frontend. Supported clients include rTorrent, qBittorrent v4.1+ and Transmission, with Deluge v2+ experimental.